{
  "threat_severity" : "Moderate",
  "public_date" : "2025-02-26T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set",
    "id" : "2348179",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2348179"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set\nhci_cmd_sync_queue shall return an error if HCI_UNREGISTER flag has\nbeen set as that means hci_unregister_dev has been called so it will\nlikely cause a uaf after the timeout as the hdev will be freed.", "A vulnerability was found in the Linux kernel's Bluetooth subsystem in the `hci_cmd_sync_queue()` function. There was a missing check for whether the `HCI_UNREGISTER` flag had been set, meaning that commands were still sent even as the Bluetooth device was being unregistered. This issue could lead to a use-after-free scenario where the command is executed after the device structure is freed, potentially leading to a crash, arbitrary code execution, and system instability." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2025-07-09T00:00:00Z",
    "advisory" : "RHSA-2025:10670",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-553.60.1.rt7.401.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2025-07-09T00:00:00Z",
    "advisory" : "RHSA-2025:10669",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-553.60.1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-05-09T00:00:00Z",
    "advisory" : "RHSA-2023:2458",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-284.11.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-05-09T00:00:00Z",
    "advisory" : "RHSA-2023:2458",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-284.11.1.el9_2"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Will not fix",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-49136\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49136\nhttps://lore.kernel.org/linux-cve-announce/2025022606-CVE-2022-49136-033c@gregkh/T" ],
  "name" : "CVE-2022-49136",
  "csaw" : false
}